Recent content by redmanc

Yes, I could go back to wire things at the heat exchanger, but was hoping not to get into all of that. Unfortunately, that may be the only solution. It's a ground source system BTW. However, will check out the Nest E first!

That's the problem - I want to put the base unit where the Honeywell currently is, so I can simply connect the wires already there to control the heat exchanger. But as I said, there's no mains nearby, so I need a base unit run off batteries! Do they exist??

I have recently bought a house with underfloor heating driven by a geothermal heat exchanger, divided into 2 zones - living area and bedroom area. The living area is controlled by a simple Honeywell thermostat fixed to an outside wall. We keep the system running all the time, controlled purely...